Top similar games like Sphere Invasion:

Lead the Mobile Infantry in this RTS game set in the Starship Troopers film universe. Balance your army composition with a diverse set of unit types, overcome line-of-sight and line-of-fire challenges through tactical positioning, and use special abilities to smash the Arachnid hordes!

A grand and intense tower defense science fiction game, where you only need to purchase once to enjoy all the content of the game.

SpaceFront is a military real-time strategy game. Control Corgis, wage battles, build your army and defend the galaxy from soviet invasion! No game will be the same thanks to procedurally generated campaigns! Join the effort, join the SpaceFront!

The unstoppable fluid enemy has returned and destroyed every world in its path! Defend against Creeper as it floods across the 3D terrain in this real time strategy game where the enemy is a fluid.

Upgrade and evolve, expand your territory, and build mighty defense towers to repel hordes of monsters.

Grey Galactic is a real time strategy game in space where you build up your planets and ships to conquer your enemies. Develop your empire and fleet of spaceships to destroy your enemies and take over the galaxy! Do you have what it takes to become the best Fleet Captain the UFMC has ever seen?

Co-op and Single player Tower Defense genre.

Hell of Men: Blood Brothers is a real-time strategy game, developed by one person, in which you will have to collect resources, build your base, train your army by choosing your soldiers wisely and fight.

A unique 3D tower defense game set on randomly generated planets! Place towers to defend against 360-degree attacks, protect mining outposts, and survive intense meteor waves. Earn resources, and face endless replayability with dynamic challenges every playthrough!

RTS base builder with constant production and minimal micromanagement. Direct fleets of autonomous ships in huge battles. Features a singleplayer story campaign with 3 distinct playable factions and many subfactions, and full level editor. Test your abilities in the shifting tides of the Spance.

Do you like Tower Defense games with Strategy elements? Well, look no further! We've got exactly what you're looking for! Get ready to defend your settlement from enemies using a huge arsenal of towers!

A 3D modern real-time war game, realistic 3D style, the classic RTs of the second-generation continuation of End War RTS, stimulates the fast-paced sense of attack

Rule the battlefield from orbit! Crystal Nexus: Alien Siege is a hybrid deckbuilding tower-defense game that puts you in charge of outposts on hostile alien planets. Look down on the battlefield from your space station and deploy towers, weapons, and buffs from the cards you’ve collected!

Defend humanity in IRON GUARD: Salvation. Build and upgrade turrets, support your heroes, and personally join the fight with your drone’s firepower against relentless machines.

Are you prepared for a thrilling toy army tower defense adventure? Welcome to the Toy Shire! Battle diverse foes in various locations, defend your family, and repel foes from your area. Save the world by strengthening your defense with toy towers! FULL GAME AVAILABLE NOW!

Byte Lynx is a fast-paced RTS with no units. Build defenses, dismantle your enemy, and steal their buildings in this deeply tactical building combat-based strategy game. Expand your arsenal across a series of diverse levels!

The machines are coming! Build a maze and place powerful towers to defend your portal against an army of robots!

Command cubic armies in a classic explosive RTS but with a twist. Inspired by games like C&CG, SC2, & Total Annihilation. Build your loadout, deploy across land, sea, and air, and outwit your rivals in fast-paced tactical warfare.

Terminal squad: swarmites is a game with indirect control where you must erect a chain of buildings, which generate resources for construction or the combat units for destruction of an enemy.

The Elgem Nexus is under attack! Protect it by killing enemies, upgrading gems, and discovering powerful combinations. Not all gems grow the same, and the randomness creates infinite replayability in this element-themed tower defense game.

Build and design the terrain while defending your stronghold against alien invasion in this unique Roguelike tower defense. Choose from 30 heroes, survive enemy waves, and upgrade a variety of destructive towers to hold the line!

Eternal Siege is an evolutionary tower defense based around min-max resource management, efficient use of spells, and (hopefully) building some towers. Start in the Ancient Greek era and defend your way through the human eras (Roman, medieval, modern, etc). Can you survive the human extinction era?

Scrap Wars: TD is a Post-Apocalyptic Tower Defence game where strategy meets chaos! Build and Upgrade powerful Towers, Customize their Strengths, and Defend your Base against relentless waves of Enemy Vehicles across three unique Scenarios or Battle for as long as you can in Endless Mode!

It’s time for revenge! Lead the army of dogs to victory in this strategic Tower Defense where managing your towers will be essential. Rebuild the Village to unlock and upgrade ever more powerful turrets! Are you up to the challenge that awaits you?

Pirate Rush is an auto-battler strategy game. Choose your crew, strengthen them, dominate the battlefield with your tactics, and clear your homeland of invaders.

A fastpaced, military tug-of-war game with minimal micromanagement. Choose and deploy from a mix of specialized military units to overwhelm the enemy. Experiment with a huge variety of unit compositions, synergies, abilities, and upgrades to lead your army to victory!

6 June 1944, the greatest military invasion in human history begins with Allied soldiers landing in Normandy trying to bring an end to the war. You have been given the task of stopping the Allied invasion and defending the German territories in France. Will you be worthy and defend the Fatherland?

This is a sci-fi strategy game featuring a Defense Mode focused on tower defense and an Attack Mode focused on combat. The game includes over 30 different buildings and units, all of which can be upgraded through entry editing to enhance their performance and firepower.

Taur is an action-strategy sci-fi game. Control the Prime Cannon and unlock all of its powerful weapons and abilities. Build turrets, droids, aircraft and more as you fight to protect the homeworld of the Tauron droids against a relentless invasion. Will your Taur stand against the Imperion warmachine?

Are you prepared for a thrilling toy army tower defense adventure? Welcome to the Toy Shire! Battle diverse foes in various locations, defend your family, and repel foes from your area. Save the world by strengthening your defense with toy towers!

Warpips is the ultimate quick to learn but amazingly deep tug-of-war strategy game. Deploy the right composition of soldiers, tanks, helicopters and planes in this tight, streamlined strategy-focused war game. Compose the best army, research the right tech; overwhelm your enemy!

A sci-fi Tower Defense game. Strategize to destroy waves of rogue robots and assist the powerful turrets with player controlled drone. Build and collect resources and help evacuate your crew from the alien planet.

Battlefleet Gothic: Armada is the RTS videogame adaptation of Games Workshop’s classic tabletop game, pitting the Chaos, Imperium, Eldar, and Orks against each other in visceral space-battles.

Armoured Onslaught is a fast paced Top-Down Shooter and Tower Defence hybrid. You will need to make use of both strategy and skill as you fight your way through near endless hordes of deadly foes.

On planets occupied by robots, mine resources and escape while fending off their attacks! The Ark's survival is entirely in your hands. Many elite crews with abilities will assist you in your mission. The various turret modules are always doing their best to defend your base without your attention.

Shape the maze in this tactical tower defense with base-building and spells. Build gold mines, upgrade and customize towers, and defend against relentless waves. Risk stronger enemies for higher scores — but survive the boss assault or lose it all.